1999 Sega HARLEY DAVIDSON pinball machine support plate update kit.
Under heavy game play, the screened plastic piece (Butyrate) -15 (located at the left side of motorcycle) may crack at the front (near the right bumper)
See Stern Service Bulletin No.121 for details.
Kit includes:
Metal Support Plate (535-8767-00)Mini-jewel post (550-5052-01)No.6 x 3/8 inch hex washer head screw (234-5000-00)Service Bulletin 121 (756-5003-67)
Tools required:
1/4" > 5/16" Nutdriver.
Reference:
502-5003-67 update kit